code: def __init__(self, execution_config: Dict):
      super().__init__(execution_config)
      self._mars_execution_config = execution_config[self.backend]
  
file_path: mars/mars/services/task/execution/mars/config.py
imports: from typing import Dict, List
  from .....core.operand.shuffle import ShuffleFetchType
  from .....resource import Resource
  from ..api import ExecutionConfig, register_config_cls
  from ..utils import get_band_resources_from_config
label_desc: Use image node_id 1 to create a new MarsExecutionConfig object from inherited base classes: ExecutionConfig with example: obj = MarsExecutionConfig(execution_config)